package com.codemes.happylist.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;

/**
 * @author nscoffee
 */
@Slf4j
@Configuration
public class ThreadPoolConfig {

    public static final String POOL_BEAN_NAME="happy_list";

    @Bean(name = POOL_BEAN_NAME)
    public Executor executor(){
        log.info("初始化连接池 名称={}",POOL_BEAN_NAME);
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        //核心线程数5：线程池创建时候初始化的线程数
        executor.setCorePoolSize(10);
        //最大线程数5：线程池最大的线程数，只有在缓冲队列满了之后才会申请超过核心线程数的线程
        executor.setMaxPoolSize(10);
        //缓冲队列500：用来缓冲执行任务的队列
        executor.setQueueCapacity(500);
        //允许线程的空闲时间60秒：当超过了核心线程出之外的线程在空闲时间到达之后会被销毁
        executor.setKeepAliveSeconds(60);
        //线程池名的前缀：设置好了之后可以方便我们定位处理任务所在的线程池
        executor.setThreadNamePrefix("happy-list-");
        // 当前是非web项目，不需要这个报装饰器
//        executor.setTaskDecorator(new ThreadPoolContextDecorator());
        executor.initialize();
        return executor;
    }

}
